Power-drum gearing.



1 PATENTED JUNE 2, 1908.

0. F. OALLAHAN. -POWER DRUM GEARING.

APPLICATION FILED JAN. 16, 1908.

be laced in ear withthe engine of the auto- CHARLES}, oili. or, PASADENA; CALIFOR IA.

al llq plgom it'may concern; I Y I .Be itlsi ownthat I, CHARLES F. CALLA: HAN, acitizenof the United States, residing... at Pasadena, in the county of Los Angeles.

and State of California, have invented a new and useful Power-Drum Gearing, of which the following isa specification.

This invention relates to 'a 'power drum.

gearing ,designed for use on automobiles, whereby if the automobile becomes" stalled,

by reason of muddy or sandy roads, .or in' crossing water, the power drum gearing may mo ile and t e engine operated to drive the power drum and wind up a cable thereon, the

end of the cable havin 'been attached to some stationary po1nt,.w ereby the automo-. bile may be extrlcated from its stalled posi-'- -tion without necessarily depending upon the' traction of the wheels of the automobile.

A further object of the invention is to r0- vide for driving the wheels of the automo ile simultaneously with the power drumgearing, if desired, to augment the power drumgearing and assist in moving the automobile from its stalled osition.

Anot er object is I drum gearing tobe operated by hand, if desired, without the driver getting off from the car, which is a particularly advantageous feature when the automobileis stalled in mud or water.

The accompanying drawings illustrate the invention, and referring thereto Fi ure 1 isa plan view of the rear portion of ac assis,

' showing the frame of the automobile, rear wheels and. axle, propeller shaft, regular transmission gearing-case, a application of the power dru'm gearing adapt e tobe geared with the propeller shaft.

Fig. 2 is a transverse sectional view on line B -m Fig. 1, showing the bevel gear of the power drum and hand operated pinion in elevation.

. l designates the rear axle having rear 1 wheels 2 anddilferential gear casing 3, and

extending forwardly from the differential gear casing 3 is a propeller shaft-4, provided with the usual umversal joints 5, its forward end extendinginto the regular transmission gearing case 6.

A yoke 7 .is provided and has journal bearings 8 throu h which the ropeller shaft 4 extends, and t at portion of the propeller shaft 4 which lies between the journal bearings 8 is squared, as indicated, and slidably mount- Specification of Letters Patent. I -Application flled' lianuary lfi 1903. Serial no. 411,11

, mesh with the to enable the power nd illustrates themen Guanine, J

PatentedJ'une 2, 31908.

ed on the 's' uared portion is asleeve 9 the h is squared to fit the pro eller bore of whic shaft, whichsleeve is provided with evel gears. 10'and 11 at each end. The sleeve 9 so is alsoprovided with a grooved collar 12 which may be engaged by a forked lever, not' shown, for sliding the sleeve 9 in either dues tion on the propeller shaft. The yoke 7 also has a central journal bearings-5 in which 65" journaled a short shaft 14 w 'ch at'on'e end carries 'a bevel gear 15, and by slidin the sleeve 9 in one direction or the .other either the gear 10 or 'gear 11 may be moved into the shaft 14, w e when the sleeve 9 stands in a central position, .both gears 10 and 11 are out of mesh with gear 15., The'shaft' 14 i is connected by a universal joint 15 with a squared shaft 16 which is slidablymounted in an internally squared shaft 17., the shaft 17 being ournaled'in bearings 18 and 19 formed on aframe 20. Mounted on theshaft 17 is a spur gear 21 and a bevel gear 22. The spur gear 21 is permanently in mesh with a spur gear 23 mountedat one end of adrum 24, the

' rum 24 being j ournaled in bearin s25 in the.

frame'20. A journal bearing 26 is attached to the side frame 27 of'the automobile and mounted therein is a vertical shaft 28 the lowerend of which carries a bevel pinion 29 whichineshes with the bevel v ear 22. The upper end of ,the shaft 28 lies ush with the 'deck or floor 30- of. the automobile and is squared to receive theso'cket end 31 of a crank 32, which crank may be readily applied tothe shaft 28 whenit is desired to operate thejsarne manually. A cable 33 1 may be carried while wound on the drum 24,

of lt-may be carried in the automobile and wound on the drum- 24 when it is necessary to use it.

In operation, when the automobile. becomes stalled, the front end of-the cable 33 is carried forward and attached to some fixed object and its rear end being'wound on the drum, by rotating the drum, the automobile i may be drawn forward to extricate it. This maybe'accomplished by operating-thehandle p 32 to rotate-plnion. 29wh1ch drives gear 22,- thus imparting rotation to gear 21,'and the latter driving drum 24 through the medium of gear 23, .the sleeve 9 standing in central position.

Preferablfijlihe power drum is driven by the engine by s ting sleeve 9 to engage either of gears 10 or 11 with gear 15, according to file'lar 15 to impart'ro'tation t0'.,170

and the latter gears 21 and 23, thus'rotating drum- 24.

the direction in which the' drum is tobe driven, whereupon the. rotation of the propeller shaft 4 1m' arts rotation to shaft 14,

riving shaft 16' imparts, through the medium of shaft 17, rotation to uring this operation it will be noted that asv the propeller shaft rotates it also furnishes powerto the rear wheels 2 thus assisting in gearing in either direction, thus enablin the 1 cable .33 to be wound either wa aroun the drum 24 or to pull the automo ile in either direction. The universal joint 15 and slidinggshaft 16 permit the necessary play of the yo 6 7, as the propeller shaft 5 swin s slightly in running due to the diiferentia vertical movement between the transmission case 6 and the rear axle 1. l 5

What I claim is 1. In combination with the propeller shaft,

. a drum mounted transversely thereof, a gear at one end of the drum, a sleeve slidable on the-propeller shaft, a pair of. bevel gears on said sleeve, a yoke'pivotally' supported on the sleeve meshing wit ssaas'v.

a gear on the lattershaft adapted to be engaged by either of said first named bevel ears, another shaft connected by a universal oint with the latter shaft, a rotating sleeve mounted, and asgur gear on said rotating the gear on said drum.

., 2. In, 'com ination with the propeller shaft, a drum mounted. transversel thereof,

a car atone end'of the drum, a s eeve slidab e on the (propeller shaft, a pair of bevel gears on sai sleeve, a yoke pivotally supported on. the propeller'shaft, a shaft journaled in said yoke, a gear on the latter shaft adapted to be engaged b named bevel ears, another shaft connected .by a universa joint with the latter shaft, a rot'atim sleeve inwhich thelast named shaft is slidably mounted, a spur car on said ro- "tating sleeve meshing w1th t e gear on said drum, a bevel gear on said rotatlng sleeve, .a

either of said fir'st propeller shaft, a shaft journaled in said yoke,

fin wh ichthe last named shaft is slidably pini n meshing with the last named bevel gear and a vertical shaft extending to the deck of the automobile and'supporting said pinion and adapted to receive crank means above the deck of the car in its upper end for rotating it.

In testimony whereof, I-have hereunto set my hand at Los Angeles California this .8th

day of January 1908. 4

' CHARLES F. CALLAHAN.

In presence of- I .G oR GE T. HACKLEY, =FRANK-L; A.'GRAHAM4 

